Hugh brady



H. BRADY.

Axle-Box.

Patented Aug 2o, 1867.

N- FEIERS FMoTo-uruoankman. WASHINGTON. n c.

@einen ,gisten @anni @fitta H'UGHNBRADYL .or FAoTonYvILL-E, NEW rosie- Lettere Patent No. 67,946, dated August 20, 1867.

IMPROVEMENT IN AXLE-BOXES.

l'.lO ALL WHOM IT MAY CONCERN:

A Be it known that L'HUGH BRADY, of Factoryville, inv the county of Richmond, and State of New York', have invented anew and useful Improvement in Axle-Boxes; andI do hereby declarethet the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which- Figure 1 is a central longitudinal section of my improved axle-box. 4

Figure 2 is a transverse section of the same.

Figure 3 is a. detached view hof2 a set offriction- Wheels on which the axle runs.

Similar letters of reference indicate like parts.

The nature of this invention consists'n enclosing in the axle-boxra number of sets of friction-rollers hung 'loosely' upon circular bearings, each set of rollers being separated by partitions which are "formed of rings made .fast by screws through the axle. The arm of the axle is enclosed by the rollers, which turn loosely upon it as the wheel revolves, and thus relieve the friction so entirely as to 'render oil'orgrease unnecessaryto run easily und without excessive wear of the metal..` y I v The axle-box a is made of cast or malleable iron, on the outside of which are lugs or spur projections, b b,

running lengthwise oflthe box tohold it firmly in the hub of a wheel. Within the axle-box are secured by screws c c, ring partitions dd, between which are placedsets of rollers e e, hung on disk-bearings-g g, which are secured at each end of the rollers 'by'cross-bars h h, placed between the rollers, as shownV clearly in fig. 3. The outer surface of the rollers e e projects outside of theperiphery of the disk-bearings g g, and lies directly in contact with the inside surface of the axle-box, while the' inner surface of the rollers lies directly in contact with the axle A. It will be seen by this arrangement that each set of rollers will play loosely in the chambers between the partitions d d, and will turn upon theaxle with the revolntionof the wheel in such manner that there will be little or no friction to retard motion; v l

Having'thus described my invention, I claim as new, and desire to secure by Letters Patent- The friction-rollers e e, hungl 'in the disk-bearings g g, in combination with the partitions did, enclosed in 'the axle-box a, constructed, arranged, and operating substantially as-and for the purpose herein described.

HUGH BRADY.

Witnesses:

WM. F. MNAMAnA, ALEX. F. ROBERTS. 

